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Merge branch 'eugenp:master' into master

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press0
2023-04-10 10:39:14 -05:00
committed by GitHub
parent aeb0bd3bd7 23c1abe3f2
commit 1628c013c6
769 changed files with 6256 additions and 3223 deletions
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core-java-modules/core-java-10/pom.xml
-1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-10</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-10</name>
<packaging>jar</packaging>
core-java-modules/core-java-11-2/pom.xml
-1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-11-2</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-11-2</name>
<packaging>jar</packaging>
core-java-modules/core-java-11-3/pom.xml
+1 -2
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-11-3</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-11-3</name>
<packaging>jar</packaging>
@@ -14,7 +13,7 @@
<version>1.0.0-SNAPSHOT</version>
<relativePath>../../pom.xml</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>com.google.code.gson</groupId>
core-java-modules/core-java-11/pom.xml
-2
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@@ -4,10 +4,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-11</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-11</name>
<packaging>jar</packaging>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.baeldung</groupId>
core-java-modules/core-java-12/pom.xml
-2
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@@ -4,10 +4,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-12</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-12</name>
<packaging>jar</packaging>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.baeldung</groupId>
core-java-modules/core-java-13/pom.xml
-3
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@@ -3,12 +3,9 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<artifactId>core-java-13</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-13</name>
<packaging>jar</packaging>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.baeldung</groupId>
core-java-modules/core-java-14/pom.xml
-1
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@@ -6,7 +6,6 @@
<artifactId>core-java-14</artifactId>
<name>core-java-14</name>
<packaging>jar</packaging>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.baeldung</groupId>
core-java-modules/core-java-15/pom.xml
-1
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@@ -6,7 +6,6 @@
<artifactId>core-java-15</artifactId>
<name>core-java-15</name>
<packaging>jar</packaging>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.baeldung</groupId>
core-java-modules/core-java-16/pom.xml
-2
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@@ -4,10 +4,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-16</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-16</name>
<packaging>jar</packaging>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.baeldung</groupId>
core-java-modules/core-java-17/pom.xml
-2
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@@ -4,10 +4,8 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-17</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-17</name>
<packaging>jar</packaging>
<url>http://maven.apache.org</url>
<parent>
<groupId>com.baeldung</groupId>
core-java-modules/core-java-19/pom.xml
+11 -9
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@@ -1,21 +1,17 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-19</artifactId>
<name>core-java-19</name>
<parent>
<groupId>com.baeldung.core-java-modules</groupId>
<artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>core-java-19</artifactId>
<properties>
<maven.compiler.source>19</maven.compiler.source>
<maven.compiler.target>19</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<plugins>
<plugin>
@@ -30,4 +26,10 @@
</plugins>
</build>
<properties>
<maven.compiler.source>19</maven.compiler.source>
<maven.compiler.target>19</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>
core-java-modules/core-java-19/src/main/java/com/baeldung/highcpu/Application.java
+20
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@@ -0,0 +1,20 @@
package com.baeldung.highcpu;
import java.util.LinkedList;
import java.util.List;
import java.util.function.IntUnaryOperator;
import java.util.stream.IntStream;
public class Application {
static List<Integer> generateList() {
return IntStream.range(0, 10000000).parallel().map(IntUnaryOperator.identity()).collect(LinkedList::new, List::add, List::addAll);
}
public static void main(String[] args) {
List<Integer> list = generateList();
long start = System.nanoTime();
int value = list.get(9500000);
System.out.printf("Found value %d in %d nanos\n", value, (System.nanoTime() - start));
}
}
core-java-modules/core-java-8-2/pom.xml
-1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-8-2</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-8-2</name>
<packaging>jar</packaging>
core-java-modules/core-java-8-2/src/main/java/com/baeldung/helpervsutilityclasses/MyHelperClass.java
+40
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@@ -0,0 +1,40 @@
package com.baeldung.helpervsutilityclasses;
class MyHelperClass {
public double discount;
public MyHelperClass(double discount) {
if (discount > 0 && discount < 1) {
this.discount = discount;
}
}
public double discountedPrice(double price) {
return price - (price * discount);
}
public static int getMaxNumber(int[] numbers) {
if (numbers.length == 0) {
throw new IllegalArgumentException("Ensure array is not empty");
}
int max = numbers[0];
for (int i = 1; i < numbers.length; i++) {
if (numbers[i] > max) {
max = numbers[i];
}
}
return max;
}
public static int getMinNumber(int[] numbers) {
if (numbers.length == 0) {
throw new IllegalArgumentException("Ensure array is not empty");
}
int min = numbers[0];
for (int i = 1; i < numbers.length; i++) {
if (numbers[i] < min) {
min = numbers[i];
}
}
return min;
}
}
core-java-modules/core-java-8-2/src/main/java/com/baeldung/helpervsutilityclasses/MyUtilityClass.java
+19
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@@ -0,0 +1,19 @@
package com.baeldung.helpervsutilityclasses;
public final class MyUtilityClass {
private MyUtilityClass(){}
public static String returnUpperCase(String stringInput) {
return stringInput.toUpperCase();
}
public static String returnLowerCase(String stringInput) {
return stringInput.toLowerCase();
}
public static String[] splitStringInput(String stringInput, String delimiter) {
return stringInput.split(delimiter);
}
}
core-java-modules/core-java-8-2/src/test/java/com/baeldung/helpervsutilityclasses/MyHelperClassUnitTest.java
+20
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@@ -0,0 +1,20 @@
package com.baeldung.helpervsutilityclasses;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
class MyHelperClassUnitTest {
@Test
void whenCreatingHelperObject_thenHelperObjectShouldBeCreated() {
MyHelperClass myHelperClassObject = new MyHelperClass(0.10);
int[] numberArray = {15, 23, 66, 3, 51, 79};
assertNotNull(myHelperClassObject);
assertEquals(90, myHelperClassObject.discountedPrice(100.00));
assertEquals( 79, MyHelperClass.getMaxNumber(numberArray));
assertEquals(3, MyHelperClass.getMinNumber(numberArray));
}
}
core-java-modules/core-java-8-2/src/test/java/com/baeldung/helpervsutilityclasses/MyUtilityClassUnitTest.java
+15
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@@ -0,0 +1,15 @@
package com.baeldung.helpervsutilityclasses;
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
class MyUtilityClassUnitTest {
@Test
void whenUsingUtilityMethods_thenAccessMethodsViaClassName(){
assertEquals( "INIUBONG", MyUtilityClass.returnUpperCase("iniubong"));
assertEquals("accra", MyUtilityClass.returnLowerCase("AcCrA"));
}
}
core-java-modules/core-java-8-datetime-2/pom.xml
-1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-8-datetime-2</artifactId>
<version>${project.parent.version}</version>
<name>core-java-8-datetime-2</name>
<packaging>jar</packaging>
core-java-modules/core-java-8-datetime/pom.xml
-1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-8-datetime</artifactId>
<version>${project.parent.version}</version>
<name>core-java-8-datetime</name>
<packaging>jar</packaging>
core-java-modules/core-java-8/pom.xml
-1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-8</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-8</name>
<packaging>jar</packaging>
core-java-modules/core-java-9-improvements/pom.xml
-1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-9-improvements</artifactId>
<version>0.2-SNAPSHOT</version>
<name>core-java-9-improvements</name>
<parent>
core-java-modules/core-java-9-jigsaw/pom.xml
-1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-9-jigsaw</artifactId>
<version>0.2-SNAPSHOT</version>
<name>core-java-9-jigsaw</name>
<parent>
core-java-modules/core-java-9-new-features/pom.xml
-1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-9-new-features</artifactId>
<version>0.2-SNAPSHOT</version>
<name>core-java-9-new-features</name>
<parent>
core-java-modules/core-java-9-streams/pom.xml
-1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-9-streams</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-9-streams</name>
<packaging>jar</packaging>
core-java-modules/core-java-9/README.md
-1
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@@ -5,7 +5,6 @@ This module contains articles about Java 9 core features
### Relevant Articles:
- [Method Handles in Java](https://www.baeldung.com/java-method-handles)
- [Introduction to Chronicle Queue](https://www.baeldung.com/java-chronicle-queue)
- [Iterate Through a Range of Dates in Java](https://www.baeldung.com/java-iterate-date-range)
- [Initialize a HashMap in Java](https://www.baeldung.com/java-initialize-hashmap)
- [Immutable ArrayList in Java](https://www.baeldung.com/java-immutable-list)
core-java-modules/core-java-9/pom.xml
-1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-9</artifactId>
<version>0.2-SNAPSHOT</version>
<name>core-java-9</name>
<parent>
core-java-modules/core-java-annotations/pom.xml
+8 -1
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@@ -4,7 +4,6 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-annotations</artifactId>
<version>0.1.0-SNAPSHOT</version>
<name>core-java-annotations</name>
<packaging>jar</packaging>
@@ -24,4 +23,12 @@
</resources>
</build>
<dependencies>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>javax.annotation-api</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
</project>
core-java-modules/core-java-booleans/README.md
+6
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@@ -0,0 +1,6 @@
## Core Java Booleans
This module contains articles about Java Booleans.
### Relevant Articles:
- [Convert Boolean to String in Java](https://www.baeldung.com/java-convert-boolean-to-string)
core-java-modules/core-java-booleans/pom.xml
+16
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@@ -0,0 +1,16 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-booleans</artifactId>
<name>core-java-booleans</name>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung.core-java-modules</groupId>
<artifactId>core-java-modules</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
</project>
core-java-modules/core-java-booleans/src/test/java/com/baeldung/booleans/BooleanToStringUnitTest.java
+48
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@@ -0,0 +1,48 @@
package com.baeldung.booleans;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
public class BooleanToStringUnitTest {
String optionToString(String optionName, boolean optionValue) {
return String.format("The option '%s' is %s.", optionName, optionValue ? "Enabled" : "Disabled");
}
@Test
void givenPrimitiveBoolean_whenConvertingUsingTernaryOperator_thenSuccess() {
boolean primitiveBoolean = true;
assertEquals("true", primitiveBoolean ? "true" : "false");
primitiveBoolean = false;
assertEquals("false", primitiveBoolean ? "true" : "false");
assertEquals("The option 'IgnoreWarnings' is Enabled.", optionToString("IgnoreWarnings", true));
}
@Test
void givenBooleanObject_whenConvertingUsingBooleanToString_thenSuccess() {
Boolean myBoolean = Boolean.TRUE;
assertEquals("true", myBoolean.toString());
myBoolean = Boolean.FALSE;
assertEquals("false", myBoolean.toString());
Boolean nullBoolean = null;
assertThrows(NullPointerException.class, () -> nullBoolean.toString());
}
@Test
void givenBooleanObject_whenConvertingUsingStringValueOf_thenSuccess() {
Boolean myBoolean = Boolean.TRUE;
assertEquals("true", String.valueOf(myBoolean));
myBoolean = Boolean.FALSE;
assertEquals("false", String.valueOf(myBoolean));
Boolean nullBoolean = null;
assertEquals("null", String.valueOf(nullBoolean));
}
}

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